Ageing is associated with profound changes in behaviour that could influence exposure and
susceptibility to infectious disease. As well as determining emergent patterns of infection …

Williams' evolutionary theory of senescence based on antagonistic pleiotropy has become a
landmark in evolutionary biology, and more recently in biogerontology and evolutionary …

Technological advances in recent years have seen an explosion of tracking and stable
isotope studies of seabirds, often involving repeated measures from the same individuals …

Social relationships are important to many aspects of animals' lives, and an individual's
connections may change over the course of their lifespan. Currently, it is unclear whether …

Earth's old animals are in decline. Despite this, emerging research is revealing the vital
contributions of older individuals to cultural transmission, population dynamics, and …

Arctic species encounter multiple stressors including climate change and environmental
contaminants. Some contaminants may disrupt hormones that govern the behavioural …

Mercury (Hg) is a metallic trace element toxic for humans and wildlife that can originate from
natural and anthropic sources. Hg spatial gradients have been found in seabirds from the …

Background Foraging performance is widely hypothesized to play a key role in sha** age-
specific demographic rates in wild populations, yet the underlying behavioral changes are …

The reproductive success of wild animals usually increases with age before declining at the
end of life, but the proximate mechanisms underlying those patterns remain elusive. Young …

Senescence has been widely documented in wild vertebrate populations, yet the proximate
drivers of age‐related declines in breeding success, including allocation trade‐offs and links …